Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5461069 | Journal of Alloys and Compounds | 2017 | 5 Pages |
Abstract
Constructing sufficient micropores and small mesopores for Li+ storage while maintaining a developed hierarchical macro/mesoporous structure for rapid mass transfer are critical for porous carbons in lithium-ion battery (LIB) applications. Herein, a new kind of hierarchical macro-meso-microporous carbon with high surface area (HSHPC) for LIB application is successfully fabricated by using a porous network structured polymer as a precursor. The as-prepared HSHPC presents a 3D continuous macro/mesopore structure and ultrahigh surface area of 2602 m2 gâ1. As a result, it exhibits a high specific capacity of 660 mAh gâ1 and stable cycling performance during 100 cycles at a current density of 0.1 A gâ1. Furthermore, the ideal macro/mesoporous network is able to guarantee rapid ion diffusion and transfer, thus attaining an excellent high-rate performance in contrast to graphite.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xiaoqing Yang, Chao Wei, Chengcui Sun, Xinxi Li, Yue Chen,